UCI Multiplexing Across UE Panels Under PUCCH-PUSCH Overlap
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently multiplexing uplink control information (UCI) across multiple antenna panels of a user equipment (UE) due to overlapping physical uplink control channels (PUCCH) and physical uplink shared channels (PUSCH) scheduled by downlink control information (DCI), leading to inefficiencies in resource allocation and communication.
Innovation Solution
The method involves determining overlap between PUCCH and PUSCH on different antenna panels based on DCI scheduling and transmitting UCI on one or both channels accordingly, allowing for efficient multiplexing and resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If PUCCH and PUSCH are transmitted on different antenna panels simultaneously, then resource allocation flexibility is improved, but channel overlap and interference increase
Solution Approach 1:
The patent segments the uplink control information transmission by separating PUCCH and PUSCH transmissions onto different antenna panels. The UE determines which panel transmits PUCCH and which transmits PUSCH based on overlap detection, dividing the transmission task across multiple spatial paths to reduce interference while maintaining allocation flexibility.
2Productivity
If UCI is multiplexed on overlapping channels, then resource utilization efficiency is improved, but transmission reliability may deteriorate
Solution Approach 1:
The patent introduces an intermediary decision-making process where the UE detects channel overlap and determines the appropriate transmission strategy. Based on the overlap detection result, the UE either multiplexes UCI on the PUSCH (when overlap exists) or transmits separately on PUCCH and PUSCH (when no overlap), thus mediating between resource efficiency and transmission reliability.
3Reliability
If multiple antenna panels are used for PUCCH and PUSCH transmission, then communication performance is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic panel selection and transmission mode adaptation. The UE dynamically determines which antenna panels to use for PUCCH and PUSCH based on real-time overlap detection, and dynamically switches between multiplexing and separate transmission modes. This dynamic approach improves communication performance while managing device complexity through adaptive rather than static configuration.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine that a physical uplink control channel (PUCCH) transmitted on a first antenna panel of the UE is to overlap with a physical uplink shared channel (PUSCH) transmitted on a second antenna panel of the UE based at least in part on downlink control information (DCI) scheduling the PUCCH and the PUSCH. The UE may determine to transmit uplink control information (UCI) on one or more of the PUCCH or the PUSCH based at least in part on determining that the PUCCH is to overlap with the PUSCH, and transmit the UCI on one or more of the PUCCH or the PUSCH based at least in part on determining to transmit the UCI on one or more of the PUCCH or the PUSCH. Numerous other aspects are provided.